Astronomy and Astrophysics – Astrophysics
Scientific paper
Feb 1997
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997ap%26ss.248..167p&link_type=abstract
Astrophysics and Space Science, Volume 248, Issue 1-2, pp. 167-174
Astronomy and Astrophysics
Astrophysics
19
Scientific paper
We present a study at HST-like spatial resolution of the gas kinematics in the innermost part of NGC 1068. This work is based on observations with the integral field spectrograph TIGER mounted on the CFH Telescope. We first derived the final spatial PSF of our data and checked its photometric integrity by comparison with two independent [OIII] HST images (FOC and WFPC2). We then performed a spatial deconvolution of the data-cube constraining the sum of the deconvolved velocity-slices to be as close as possible to the HST image. The resulting deconvolved data-cube has then a resolution similar to the HST image. It shows that the velocity distribution of the inner clouds detected with the HST differs strongly from a simple NE-SW ejection flow. We thus show that the previous interpretations of the double-peaked lines NE of the nucleus must be revisited.
Binette Luc
Ferruit Pierre
Pécontal Emmanuel
Wilson Andrew S.
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